<script>
  
</script>
<nav aria-label="Breadcrumb" class="breadcrumb">
  <ul>
    <li><a href="#">首页</a></li>
    <li><a href="#">管理后台</a></li>
    <li><span aria-current="page">标签管理</span></li>
  </ul>
</nav>

<style>
.breadcrumb {
    padding: 0 .5rem;
}

.breadcrumb ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb li:not(:last-child)::after {
    display: inline-block;
    margin: 0 10px;
    content: "/";
}
.icon{
  margin-right: 5px;
}
nav{
  display: flex;
  align-items: center;
}
ul,li,a{
  display: flex;
  align-items: center;
}
</style>